A quick-installation guide structure for a reverse circulation gas box

Abstract

This utility model relates to the field of air box installation technology, and provides a quick installation guide structure for a reverse circulation air box. It includes an air box body and a lower installation tube. A central guide is provided on the side wall of the air box body, comprising a guide positioning seat and a guide base. An upper mounting seat is provided at the bottom of the air box body, and a lower mounting seat and a positioning plate are provided at the top of the lower installation tube. The positioning plate is positioned within the mounting groove of the lower mounting seat. Upper positioning holes and lower positioning holes are respectively provided on the edges of the upper mounting seat and the positioning plate. A locking component is slidably installed within the lower positioning hole. This utility model ensures that the air box body and the lower installation tube remain coaxial, avoiding center offset problems during installation and improving equipment stability. The lower mounting seat can rotate relative to the lower installation tube. The positioning plate and the lower positioning hole provide a stable reference for the locking component, eliminating the need for repeated manual calibration, shortening installation time, and improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of air box installation technology, specifically a quick-installation guide structure for a reverse circulation air box. Background Technology

[0002] Air-lift reverse circulation drilling refers to the process of sending compressed air into the well to a certain depth through the air delivery pipeline of the double-walled drilling tool, and then injecting it into the pipe through a mixer to mix with the circulating liquid. Since the density of the mixed liquid is less than that of the flushing fluid, a pressure difference is generated between the wellbore and the slag discharge pipe. Under the action of the liquid column pressure in the wellbore, the gas and liquid mixture in the slag discharge pipe flows upward at a high speed, thereby continuously discharging the rock core or rock cuttings from the bottom of the hole to the surface.

[0003] In reverse circulation drilling operations, the air box, as a core pneumatic control component, requires a precise and stable connection to the main structure of the drilling equipment. Current air box installation methods often rely on manual hole positioning, which is time-consuming, labor-intensive, and prone to hole position deviations. This traditional installation method not only reduces installation efficiency and increases labor costs, but also, if forced to install under conditions of hole position deviation, can damage the threads of the air box or mounting base, affecting the sealing and stability of the connection. This can lead to problems such as air leakage and unstable pressure during drilling, disrupting the normal progress of the drilling operation. Utility Model Content

[0004] This invention proposes a quick-installation guide structure for a reverse circulation gas box that can accurately guide and quickly install while being easy to maintain.

[0005] A quick-installation guide structure for a reverse circulation gas box includes a gas box body and a lower mounting pipe. The side wall of the gas box body is provided with at least three central guide members at equal intervals around the periphery. Each central guide member includes a guide positioning seat fixedly connected to the gas box body. The bottom end of the guide positioning seat is fixedly connected to a guide base. The bottom end of the gas box body is provided with an upper mounting seat. The edge of the upper mounting seat is provided with at least three upper positioning holes at equal intervals around the periphery. The lower mounting tube has a rotatable lower mounting seat at its top end. The structural dimensions of the lower mounting seat are adapted to the structural dimensions of the upper mounting seat. Both the lower and upper mounting seats have sealing grooves on their opposite surfaces. A rubber sealing gasket is provided in the sealing groove. The lower mounting seat has a mounting groove, in which a positioning plate is fixedly connected to the top end of the lower mounting tube. The inner diameter of the mounting groove is adapted to the outer diameter of the positioning plate. At least three lower positioning holes are equidistantly provided around the edge of the positioning plate. A locking assembly is slidably provided in the lower positioning holes. The locking assembly includes a locking rod slidably disposed in the lower positioning hole. The locking rod passes through the upper positioning hole and is fixedly connected to a locking block. The locking block is slidably connected to the guide base.

[0006] By adopting the above structure, three central guide members, in conjunction with the sliding engagement of the locking block and the guide base, ensure that the air box body and the lower mounting pipe remain coaxial, effectively avoiding center offset problems during installation. The synergistic effect of multiple sets of central guide members can evenly transmit the external force on the air box body, reducing vibration and displacement and improving the stability of equipment operation. The lower mounting base can rotate relative to the lower mounting pipe, and the positioning plate and lower positioning hole provide a stable reference for the locking assembly. Alignment of the upper and lower positioning holes and bolt holes can be quickly adjusted without repeated manual calibration, significantly shortening installation time and effectively improving work efficiency.

[0007] Preferably, the bottom end of the air box body is provided with a guide plate, the upper mounting base and the guide plate are both coaxially arranged with the air box body, the guide plate is disposed between the upper mounting base and the guide base, the locking block is provided with a U-shaped locking cavity, and the guide plate and the guide base are both slidably connected to the U-shaped locking cavity.

[0008] Preferably, the upper mounting base has at least three T-shaped grooves equidistantly spaced around its edge, the bottom of the locking block has a T-shaped protrusion, the T-shaped grooves slide in cooperation with the T-shaped protrusions, and the upper positioning hole is located at the bottom of the T-shaped grooves.

[0009] Preferably, the upper positioning holes are evenly distributed along the edge of the upper mounting base in the circumferential direction, and the positions of the upper positioning holes correspond one-to-one with the positions of the locking rods; The lower positioning holes are evenly distributed on the edge of the positioning plate, and the positions of the lower positioning holes correspond one-to-one with the positions of the locking rods.

[0010] To effectively prevent the limiting rod of the locking assembly from sliding out of the lower positioning hole, the bottom of the locking rod is provided with a limiting block that engages with the lower positioning hole. The limiting block is slidably disposed between the positioning plate and the lower mounting base.

[0011] Preferably, both the upper mounting base and the lower mounting base are annular structures, and both the upper mounting base and the lower mounting base are provided with multiple fixing bolt holes, in which fastening bolts for fixing the lower mounting base and the upper mounting base are provided.

[0012] After adopting the above technical solution, the beneficial effects of this utility model are: 1. The reverse circulation air box quick-installation guide structure provided by this utility model, through the setting of three central guide components, in conjunction with the sliding engagement of the locking block and the guide base, ensures that the air box body and the lower installation pipe remain coaxial, effectively avoiding the problem of center offset during installation; the synergistic effect of multiple sets of central guide components can evenly transmit the external force on the air box body, reducing vibration and displacement, and improving the stability of equipment operation. The lower installation base can rotate relative to the lower installation pipe, and the positioning plate and lower positioning hole provide a stable reference for the locking component, allowing for quick adjustment of the alignment of the upper and lower positioning holes and bolt holes without repeated manual calibration, greatly shortening the installation time and effectively improving work efficiency.

[0013] 2. The limiting blocks of the positioning components can effectively prevent the positioning components from sliding out, ensuring the integrity of the structure after installation; the sealing structure between the upper and lower mounting seats can prevent gas and liquid leakage and reduce the wear of the seals; all guide surfaces are designed with smooth surfaces, which can reduce frictional resistance, reduce component wear, and extend the service life of the overall equipment. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention in use; Figure 2 This is a structural schematic diagram of the central guide component; Figure 3 This is an exploded structural diagram of the present invention; Figure 4 This is a schematic diagram of the card slot assembly.

[0015] Wherein: 1-Air box body; 2-Central guide component; 21-Guide positioning seat; 22-Guide base; 3-Upper mounting seat; 31-T-shaped slide; 32-Upper positioning hole; 4-Clocking assembly; 41-Clocking block; 42-Clocking rod; 43-Limiting block; 5-Lower mounting seat; 51-Positioning plate; 52-Lower positioning hole; 6-Lower mounting tube. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] The orientations mentioned in this specification are based on the orientation of this utility model during normal operation, and do not limit its orientation during storage and transportation. They only represent relative positional relationships and do not represent absolute positional relationships.

[0018] like Figure 1-4As shown, a quick-installation guide structure for a reverse circulation gas box includes a gas box body 1 and a lower installation pipe 6. The gas box body 1 is a hollow cylindrical structure with a gas-liquid separation chamber inside (not shown in the figure, as it has no impact on the structure of this application). Three central guide members 2 are evenly arranged circumferentially on the side wall of the gas box body 1. The top end of the lower installation pipe 6 is adapted to connect with the bottom end of the gas box body 1 to realize the circulation and transportation of gas and liquid. The three central guide members 2 are set to ensure that the gas box body 1 and the lower installation pipe 6 remain coaxial, thereby avoiding the problem of center offset during installation. The synergistic effect of multiple sets of central guide members 2 can evenly transmit the external force on the gas box body 1, reduce vibration and displacement, and improve the stability of equipment operation.

[0019] The central guide members 2 are evenly distributed circumferentially along the side wall of the air box body 1. This distribution ensures uniform transmission of guiding force and improves positioning accuracy. Each central guide member 2 includes a guide positioning seat 21 and a guide base 22. The guide positioning seat 21 is fixedly connected to the side wall of the air box body 1, and the connection is reinforced with fillet welds to ensure connection strength. The bottom end of the guide positioning seat 21 is fixedly connected to the guide base 22. In this embodiment, the top end of the guide base 22 is fixed to the bottom end of the guide positioning seat 21 by bolts. One side wall of the guide base 22 is provided with a smooth guide surface for cooperation with the positioning assembly 4.

[0020] The bottom of the air box body 1 is provided with an upper mounting base 3 and a guide plate. The upper mounting base 3 is a ring structure. Three upper positioning holes 32 are evenly provided along the circumference of the edge of the upper mounting base 3 for the positioning component 4 to pass through. The guide plate is set between the upper mounting base 3 and the guide base 22. Both the upper mounting base 3 and the guide plate are coaxially arranged with the air box body 1.

[0021] The upper surface of the upper mounting base 3 is provided with a T-shaped groove 31, which is used to cooperate with the T-shaped protrusion of the locking block 41 to achieve precise guidance; each T-shaped groove 31 is arranged radially along the upper mounting base 3, and the bottom of each T-shaped groove 31 is connected to an upper positioning hole 32.

[0022] The lower mounting tube 6 has a rotatable lower mounting seat 5 at its top end. The structural dimensions of the lower mounting seat 5 are adapted to the structural dimensions of the upper mounting seat 3. Both the lower mounting seat 5 and the upper mounting seat 3 have sealing grooves on their opposite surfaces. Rubber sealing gaskets are installed in the sealing grooves to achieve sealing at the connection points. The sealing structure between the upper mounting seat 3 and the lower mounting seat 5 can prevent gas and liquid leakage and reduce wear on the seals. The upper mounting seat 3 and the lower mounting seat 5 are annular structures. Both the lower mounting seat 5 and the upper mounting seat 3 have multiple fixing bolt holes. Fastening bolts for fixing the lower mounting seat 5 and the upper mounting seat 3 are installed in the fixing bolt holes.

[0023] The lower mounting base 5 has a mounting groove, within which a positioning disc 51 is fixedly connected to the top end of the lower mounting tube 6. The inner diameter of the mounting groove matches the outer diameter of the positioning disc 51, allowing the positioning disc 51 to rotate freely within the mounting groove. Three lower positioning holes 52 are evenly distributed circumferentially along the edge of the positioning disc 51. A locking assembly 4 is slidably disposed within each lower positioning hole 52. The locking assembly 4 includes a locking rod 42 slidably disposed within the lower positioning hole 52. The locking rod 42 passes through the upper positioning hole 32 and is fixedly connected to a locking block 41. The locking block 41 is slidably connected to the guide base 22. The locking block 41 has a U-shaped locking cavity, with both the guide disc and the guide base 22 slidably connected to the U-shaped locking cavity.

[0024] The lower mounting base 5 can rotate relative to the lower mounting tube 6. The positioning plate 51 and the lower positioning hole 52 provide a stable reference for the locking component 4. The upper and lower positioning holes 52 and bolt holes can be quickly aligned without repeated manual calibration, which greatly shortens the installation time and effectively improves the work efficiency.

[0025] The bottom of the locking block 41 is provided with a T-shaped protrusion, and the T-shaped groove 31 slides in cooperation with the T-shaped protrusion. The upper positioning hole 32 is set at the bottom of the T-shaped groove 31. The position of the upper positioning hole 32 corresponds one-to-one with the position of the locking rod 42; the lower positioning holes 52 are evenly distributed on the edge of the positioning plate 51, and the position of the lower positioning hole 52 corresponds one-to-one with the position of the locking rod 42.

[0026] The bottom of the locking rod 42 is provided with a limiting block 43 to prevent the locking assembly 4 from sliding out of the lower positioning hole 52. The limiting block 43 is slidably disposed between the positioning plate 51 and the lower mounting base 5. The limiting block 43 of the locking assembly 4 can effectively prevent the locking assembly 4 from sliding out, ensuring the integrity of the structure after installation; all guide surfaces are designed with smooth surfaces, which can reduce frictional resistance, reduce component wear, and extend the service life of the overall equipment.

[0027] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A quick installation guide structure for a reverse circulation gas box, characterized in that, The device includes a gas box body (1) and a lower mounting pipe (6). The side wall of the gas box body (1) is provided with at least three central guide members (2) at equal intervals. The central guide member (2) includes a guide positioning seat (21) fixedly connected to the gas box body (1). The bottom end of the guide positioning seat (21) is fixedly connected to a guide base (22). The bottom end of the gas box body (1) is provided with an upper mounting seat (3). The edge of the upper mounting seat (3) is provided with at least three upper positioning holes (32) at equal intervals. The lower mounting tube (6) is rotatably provided with a lower mounting seat (5) at its top end. The structural dimensions of the lower mounting seat (5) are adapted to the structural dimensions of the upper mounting seat (3). The opposing surfaces of the lower mounting seat (5) and the upper mounting seat (3) are provided with sealing grooves. A rubber sealing gasket is provided in the sealing groove. The lower mounting seat (5) is provided with a mounting groove. A positioning plate (51) is fixedly connected to the top end of the lower mounting tube (6) in the mounting groove. The inner diameter of the mounting groove is adapted to the outer diameter of the positioning plate (51). At least three lower positioning holes (52) are provided equidistantly around the edge of the positioning plate (51). A locking assembly (4) is slidably provided in the lower positioning hole (52). The locking assembly (4) includes a locking rod (42) slidably disposed in the lower positioning hole (52). The locking rod (42) passes through the upper positioning hole (32) and is fixedly connected to a locking block (41). The locking block (41) is slidably connected to the guide base (22).

2. The quick mounting guide structure for a reverse circulation gas box according to claim 1, wherein The bottom end of the air box body (1) is provided with a guide plate. The upper mounting base (3) and the guide plate are both coaxially arranged with the air box body (1). The guide plate is arranged between the upper mounting base (3) and the guide base (22). The locking block (41) is provided with a U-shaped locking cavity. The guide plate and the guide base (22) are both slidably connected to the U-shaped locking cavity.

3. The quick mounting guide structure for a reverse circulation gas box according to claim 1, wherein The upper mounting base (3) has at least three T-shaped grooves (31) equidistantly spaced around its edge. The bottom of the locking block (41) has a T-shaped protrusion. The T-shaped grooves (31) slide in cooperation with the T-shaped protrusion. The upper positioning hole (32) is located at the bottom of the T-shaped grooves (31).

4. The quick mounting guide structure for a reverse circulation air box of claim 1, wherein, The upper positioning holes (32) are evenly arranged along the circumferential direction on the edge of the upper mounting base (3), and the positions of the upper positioning holes (32) correspond one-to-one with the positions of the locking rods (42); The lower positioning holes (52) are evenly arranged on the edge of the positioning plate (51), and the position of the lower positioning holes (52) corresponds one-to-one with the position of the locking rod (42).

5. The quick mounting guide structure for a reverse circulation gas box according to claim 1, wherein The bottom of the locking rod (42) is provided with a limiting block (43) to prevent the locking assembly (4) from sliding out of the lower positioning hole (52). The limiting block (43) is slidably disposed between the positioning plate (51) and the lower mounting base (5).

6. The quick mounting guide structure for a reverse circulation air box of claim 1, wherein, The upper mounting seat (3) and the lower mounting seat (5) are annular structures, and the upper mounting seat (3) and the lower mounting seat (5) are provided with a plurality of fixing bolt holes, and the fixing bolt holes are provided with fastening bolts for fixing the lower mounting seat (5) and the upper mounting seat (3).

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